BIP-110 Node Support Tops 2% as Bitcoin Debates Data Caps
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The share of Bitcoin (BTC) nodes signaling for Bitcoin Improvement Proposal 110 (BIP-110) has reached 2.38%, with 583 out of 24,481 nodes running the temporary soft fork, according to The Bitcoin Portal.
BIP-110 imposes consensus-level limits on arbitrary data within transactions to mitigate spam from non-monetary activity. The proposal caps transaction output sizes at 34 bytes and restricts OP_RETURN data to 83 bytes. The soft fork is scheduled for a one-year activation, with the option to extend or modify it after that period, as outlined on the proposal’s GitHub page.
Bitcoin Knots is currently the primary node software used to run the BIP-110 implementation, according to The Bitcoin Portal.
OP_RETURN allows users to embed arbitrary data in transactions and has been a focal point of debate following changes in Bitcoin Core version 30. The 83-byte OP_RETURN limit was removed in that release, following a contentious pull request first proposed in April 2025. The update went live in October 2025, drawing pushback from critics who argued that removing the cap could encourage spam.
Community debate over arbitrary data limits
Opponents of uncapped arbitrary data contend that increased on-chain data inflates storage requirements for node operators, raising costs and potentially leading to centralization. Bitcoin’s design allows nodes to run on consumer-grade hardware, and critics warn that higher resource demands could narrow participation in the network.
Bitcoin advocate and educator Matthew Kratter cautioned that spam has the potential to undermine the protocol’s underlying structure. By contrast, supporters of the uncapped approach, including Bitcoin Core contributor Jameson Lopp, argue that filters are ineffective at preventing spam and that such limits may not address the root of the issue.
A timeline for BIP-110 deployment. Source: BIP-110.org
The pull request proposing the removal of arbitrary data limits on Bitcoin. Source: GitHub
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